{Spam?} Re: SCSI RAID on FreeBSD 7.0, where is the array?

[Derek Ragona]

At 07:14 PM 7/30/2008, ghostcorps at gmail.com wrote:
>Hi Derek,
>
>As mentioned in my post, I have configured the Adaptec BIOS 
>(SCSIselect/HostRAID) to create a RAID0 array.
>
>The GENERIC Kernel natively-uses the 'ahd' adapter for this card, 
><http://www.freebsd.org/cgi/man.cgi?query=ahd&sektion=4&manpath=FreeBSD+7.0-RELEASE>http://www.freebsd.org/cgi/man.cgi?query=ahd&sektion=4&manpath=FreeBSD+7.0-RELEASE
>
>dmesg does not post any errors, it recognised the card as ahd0, and states 
>that da0 & da1 are on that bus. I can not post the dmesg as the NIC 
>adapter needs to be patched once the OS is installed. I could find a USB 
>key and copy it over if you like, but there are no errors to consider.
>
>Regards

What does dmesg show for da0 and da1?

Did you actually create the array in the Adaptec RAID BIOS?  If you did, 
with a stripped array I'd expect dmesg to only report da0 as the stripped 
compendium of both disks.

         -Derek





>Derek Ragona wrote:
>>At 07:56 AM 7/30/2008, <mailto:ghostcorps at gmail.com>ghostcorps at gmail.com 
>>wrote:
>>>Hi all,
>>>
>>>
>>>I am fighting the following hardware:
>>>
>>>MB: ASUS p5b-plus (NON vista edition)
>>>Cpu: Core 2 duo 4600
>>>SCSI Card: Adaptec 39320 (Unused Dell OEM bought from ebay)
>>>HDDs: 2xSeagate Cheetah 73.4 GB Ultra320 SCSI (posibly Dell OEM)
>>>
>>>Nb. The MB does not support PCI-X, but is backwards compatible to a 
>>>standard PCI slot. On recommendations I have limited the throughput on 
>>>the channels to 160mb.
>>>
>>>If you think any other pieces relevant let me know.
>>>
>>>
>>>I think this is probably just an issue with my not knowing wtf I'm 
>>>doing, but to be optimistic lets assume the ahd module worked as there 
>>>are no errors in dmesg; which device do I install to? I can not see see 
>>>ahd0 in fdisk.
>>>
>>>There are alot of posts over the years reporting trouble with the 
>>>Dell(Adaptec/Seagate) combiniation. The funny thing is that I am having 
>>>none of these troubles; There are no panics, no dumps and no lengthy 
>>>pauses. It all seems fine, until I try to select the disk to install to 
>>>and I only have da0 or da1.
>>>
>>>
>>>
>>>Thanks for your time
>>
>>Have you defined an array?
>>
>>If you create the array in the adaptec BIOS you will see one large hard 
>>disk in FreeBSD.  If you do not define an array in the adaptec BIOS you 
>>will see the individual SCSI drives as da0, da1, etc.
>>
>>The GENERIC kernel has all the typical SCSI and RAID adapters compiled 
>>in, so look at the dmesg output when you boot FreeBSD.
>>
>>         -Derek
>>
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